Wiki source code of LA66 LoRaWAN Module

Version 114.1 by Herong Lu on 2022/07/23 14:41
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1 0
2
3 **Table of Contents:**
4
5 {{toc/}}
6
7
8
9 = 1.  LA66 LoRaWAN Module =
10
11
12 == 1.1  What is LA66 LoRaWAN Module ==
13
14
15 (((
16 (((
17 [[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
18 )))
19
20 (((
21
22 )))
23
24 (((
25 (% style="color:blue" %)**Dragino LA66**(%%) is a small wireless LoRaWAN module that offers a very compelling mix of long-range, low power consumption, and secure data transmission. It is designed to facilitate developers to quickly deploy industrial-level LoRaWAN and IoT solutions. It helps users to turn the idea into a practical application and make the Internet of Things a reality. It is easy to create and connect your things everywhere.
26 )))
27 )))
28
29 (((
30 (((
31 (% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.3 protocol**(%%). The LoRaWAN stack used in LA66 is used in more than 1 million LoRaWAN End Devices deployed world widely. This mature LoRaWAN stack greatly reduces the risk to make stable LoRaWAN Sensors to support different LoRaWAN servers and different countries' standards. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
32 )))
33 )))
34
35 (((
36 (((
37 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
38 )))
39
40 (((
41 Besides the support of the LoRaWAN protocol, LA66 also supports (% style="color:blue" %)**open-source peer-to-peer LoRa Protocol**(%%) for the none-LoRaWAN application.
42 )))
43 )))
44
45 (((
46 (((
47 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
48 )))
49 )))
50
51
52
53 == 1.2  Features ==
54
55 * Support LoRaWAN v1.0.4 protocol
56 * Support peer-to-peer protocol
57 * TCXO crystal to ensure RF performance on low temperature
58 * SMD Antenna pad and i-pex antenna connector
59 * Available in different frequency LoRaWAN frequency bands.
60 * World-wide unique OTAA keys.
61 * AT Command via UART-TTL interface
62 * Firmware upgradable via UART interface
63 * Ultra-long RF range
64
65 == 1.3  Specification ==
66
67 * CPU: 32-bit 48 MHz
68 * Flash: 256KB
69 * RAM: 64KB
70 * Input Power Range: 1.8v ~~ 3.7v
71 * Power Consumption: < 4uA.
72 * Frequency Range: 150 MHz ~~ 960 MHz
73 * Maximum Power +22 dBm constant RF output
74 * High sensitivity: -148 dBm
75 * Temperature:
76 ** Storage: -55 ~~ +125℃
77 ** Operating: -40 ~~ +85℃
78 * Humidity:
79 ** Storage: 5 ~~ 95% (Non-Condensing)
80 ** Operating: 10 ~~ 95% (Non-Condensing)
81 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
82 * LoRa Rx current: <9 mA
83 * I/O Voltage: 3.3v
84
85 == 1.4  AT Command ==
86
87
88 AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
89
90
91
92 == 1.5  Dimension ==
93
94 [[image:image-20220718094750-3.png]]
95
96
97
98 == 1.6  Pin Mapping ==
99
100 [[image:image-20220720111850-1.png]]
101
102
103
104 == 1.7  Land Pattern ==
105
106 [[image:image-20220517072821-2.png]]
107
108
109
110 = 2.  LA66 LoRaWAN Shield =
111
112
113 == 2.1  Overview ==
114
115
116 (((
117 [[image:image-20220715000826-2.png||height="145" width="220"]]
118 )))
119
120 (((
121
122 )))
123
124 (((
125 (% style="color:blue" %)**LA66 LoRaWAN Shield**(%%) is the Arduino shield base on LA66. Users can use LA66 LoRaWAN Shield to rapidly add LoRaWAN or peer-to-peer LoRa wireless function to  Arduino projects.
126 )))
127
128 (((
129 (((
130 (% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.3 protocol**(%%). The LoRaWAN stack used in LA66 is used in more than 1 million LoRaWAN End Devices deployed world widely.  This mature LoRaWAN stack greatly reduces the risk to make stable LoRaWAN Sensors to support different LoRaWAN servers and different countries' standards. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
131 )))
132 )))
133
134 (((
135 (((
136 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
137 )))
138 )))
139
140 (((
141 (((
142 Besides the support of the LoRaWAN protocol, LA66 also supports (% style="color:blue" %)**open-source peer-to-peer LoRa Protocol**(%%) for the none-LoRaWAN application.
143 )))
144 )))
145
146 (((
147 (((
148 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
149 )))
150 )))
151
152
153
154 == 2.2  Features ==
155
156 * Arduino Shield base on LA66 LoRaWAN module
157 * Support LoRaWAN v1.0.4 protocol
158 * Support peer-to-peer protocol
159 * TCXO crystal to ensure RF performance on low temperature
160 * SMA connector
161 * Available in different frequency LoRaWAN frequency bands.
162 * World-wide unique OTAA keys.
163 * AT Command via UART-TTL interface
164 * Firmware upgradable via UART interface
165 * Ultra-long RF range
166
167 == 2.3  Specification ==
168
169 * CPU: 32-bit 48 MHz
170 * Flash: 256KB
171 * RAM: 64KB
172 * Input Power Range: 1.8v ~~ 3.7v
173 * Power Consumption: < 4uA.
174 * Frequency Range: 150 MHz ~~ 960 MHz
175 * Maximum Power +22 dBm constant RF output
176 * High sensitivity: -148 dBm
177 * Temperature:
178 ** Storage: -55 ~~ +125℃
179 ** Operating: -40 ~~ +85℃
180 * Humidity:
181 ** Storage: 5 ~~ 95% (Non-Condensing)
182 ** Operating: 10 ~~ 95% (Non-Condensing)
183 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
184 * LoRa Rx current: <9 mA
185 * I/O Voltage: 3.3v
186
187 == 2.4  Pin Mapping & LED ==
188
189
190
191 == 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
192
193
194
195 == 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
196
197
198
199 == 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
200
201
202
203 == 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
204
205
206 === 2.8.1  Items needed for update ===
207
208 1. LA66 LoRaWAN Shield
209 1. Arduino
210 1. USB TO TTL Adapter
211
212 [[image:image-20220602100052-2.png||height="385" width="600"]]
213
214
215 === 2.8.2  Connection ===
216
217
218 [[image:image-20220602101311-3.png||height="276" width="600"]]
219
220
221 (((
222 (% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
223 )))
224
225 (((
226 (% style="background-color:yellow" %)**GND  <-> GND
227 TXD  <->  TXD
228 RXD  <->  RXD**
229 )))
230
231
232 Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
233
234 Connect USB TTL Adapter to PC after connecting the wires
235
236
237 [[image:image-20220602102240-4.png||height="304" width="600"]]
238
239
240 === 2.8.3  Upgrade steps ===
241
242
243 ==== 1.  Switch SW1 to put in ISP position ====
244
245
246 [[image:image-20220602102824-5.png||height="306" width="600"]]
247
248
249
250 ==== 2.  Press the RST switch once ====
251
252
253 [[image:image-20220602104701-12.png||height="285" width="600"]]
254
255
256
257 ==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
258
259
260 (((
261 (% style="color:blue" %)**1. Software download link:  [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Utility/LSN50N/>>https://www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Utility/LSN50N/]]**
262 )))
263
264
265 [[image:image-20220602103227-6.png]]
266
267
268 [[image:image-20220602103357-7.png]]
269
270
271
272 (% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
273 (% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
274
275
276 [[image:image-20220602103844-8.png]]
277
278
279
280 (% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
281 (% style="color:blue" %)**3. Select the bin file to burn**
282
283
284 [[image:image-20220602104144-9.png]]
285
286
287 [[image:image-20220602104251-10.png]]
288
289
290 [[image:image-20220602104402-11.png]]
291
292
293
294 (% class="wikigeneratedid" id="HClicktostartthedownload" %)
295 (% style="color:blue" %)**4. Click to start the download**
296
297 [[image:image-20220602104923-13.png]]
298
299
300
301 (% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
302 (% style="color:blue" %)**5. Check update process**
303
304
305 [[image:image-20220602104948-14.png]]
306
307
308
309 (% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
310 (% style="color:blue" %)**The following picture shows that the burning is successful**
311
312 [[image:image-20220602105251-15.png]]
313
314
315
316 = 3.  LA66 USB LoRaWAN Adapter =
317
318
319 == 3.1  Overview ==
320
321
322 [[image:image-20220715001142-3.png||height="145" width="220"]]
323
324
325 (((
326 (% style="color:blue" %)**LA66 USB LoRaWAN Adapter**(%%) is designed to fast turn USB devices to support LoRaWAN wireless features. It combines a CP2101 USB TTL Chip and LA66 LoRaWAN module which can easy to add LoRaWAN wireless feature to PC / Mobile phone or an embedded device that has USB Interface.
327 )))
328
329 (((
330 (% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.3 protocol**(%%). The LoRaWAN stack used in LA66 is used in more than 1 million LoRaWAN End Devices deployed world widely. This mature LoRaWAN stack greatly reduces the risk to make stable LoRaWAN Sensors to support different LoRaWAN servers and different countries' standards. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
331 )))
332
333 (((
334 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
335 )))
336
337 (((
338 Besides the support of the LoRaWAN protocol, LA66 also supports (% style="color:blue" %)**open-source peer-to-peer LoRa Protocol**(%%) for the none-LoRaWAN application.
339 )))
340
341 (((
342 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
343 )))
344
345
346
347 == 3.2  Features ==
348
349 * LoRaWAN USB adapter base on LA66 LoRaWAN module
350 * Ultra-long RF range
351 * Support LoRaWAN v1.0.4 protocol
352 * Support peer-to-peer protocol
353 * TCXO crystal to ensure RF performance on low temperature
354 * Spring RF antenna
355 * Available in different frequency LoRaWAN frequency bands.
356 * World-wide unique OTAA keys.
357 * AT Command via UART-TTL interface
358 * Firmware upgradable via UART interface
359 * Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
360
361 == 3.3  Specification ==
362
363 * CPU: 32-bit 48 MHz
364 * Flash: 256KB
365 * RAM: 64KB
366 * Input Power Range: 5v
367 * Frequency Range: 150 MHz ~~ 960 MHz
368 * Maximum Power +22 dBm constant RF output
369 * High sensitivity: -148 dBm
370 * Temperature:
371 ** Storage: -55 ~~ +125℃
372 ** Operating: -40 ~~ +85℃
373 * Humidity:
374 ** Storage: 5 ~~ 95% (Non-Condensing)
375 ** Operating: 10 ~~ 95% (Non-Condensing)
376 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
377 * LoRa Rx current: <9 mA
378
379 == 3.4  Pin Mapping & LED ==
380
381
382
383 == 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
384
385
386 (((
387 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
388 )))
389
390
391 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
392
393
394 [[image:image-20220723100027-1.png]]
395
396
397 Open the serial port tool
398
399 [[image:image-20220602161617-8.png]]
400
401 [[image:image-20220602161718-9.png||height="457" width="800"]]
402
403
404
405 (% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
406
407 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
408
409
410 [[image:image-20220602161935-10.png||height="498" width="800"]]
411
412
413
414 (% style="color:blue" %)**3. See Uplink Command**
415
416 Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
417
418 example: AT+SENDB=01,02,8,05820802581ea0a5
419
420 [[image:image-20220602162157-11.png||height="497" width="800"]]
421
422
423
424 (% style="color:blue" %)**4. Check to see if TTN received the message**
425
426 [[image:image-20220602162331-12.png||height="420" width="800"]]
427
428
429
430 == 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
431
432
433 **Use python as an example：**[[https:~~/~~/github.com/dragino/LA66/blob/main/Send_information_to_TTN_WindosPC.py>>https://github.com/dragino/LA66/blob/main/Send_information_to_TTN_WindosPC.py]]
434
435 (**Raspberry Pi example: **[[https:~~/~~/github.com/dragino/LA66/blob/main/Send_information_to_TTN_Raspberry%20Pi.py>>https://github.com/dragino/LA66/blob/main/Send_information_to_TTN_Raspberry%20Pi.py]])
436
437 (% style="color:red" %)**Preconditions:**
438
439 (% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
440
441 (% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
442
443
444
445 (% style="color:blue" %)**Steps for usage:**
446
447 (% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
448
449 (% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
450
451 [[image:image-20220602115852-3.png||height="450" width="1187"]]
452
453
454
455 == 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
456
457
458 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
459
460
461 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
462
463 [[image:image-20220723100439-2.png]]
464
465
466
467 (% style="color:blue" %)**2. Install Minicom in RPi.**
468
469 (% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
470
471 (% style="background-color:yellow" %)**apt update**
472
473 (% style="background-color:yellow" %)**apt install minicom**
474
475
476 Use minicom to connect to the RPI's terminal
477
478 [[image:image-20220602153146-3.png||height="439" width="500"]]
479
480
481
482 (% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
483
484 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
485
486
487 [[image:image-20220602154928-5.png||height="436" width="500"]]
488
489
490
491 (% style="color:blue" %)**4. Send Uplink message**
492
493 Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
494
495 example: AT+SENDB=01,02,8,05820802581ea0a5
496
497
498 [[image:image-20220602160339-6.png||height="517" width="600"]]
499
500
501
502 Check to see if TTN received the message
503
504 [[image:image-20220602160627-7.png||height="369" width="800"]]
505
506
507
508 == 3.8  Example: Use of LA66 USB LoRaWAN Module and DRAGINO-LA66-APP. ==
509
510 === 3.8.1 DRAGINO-LA66-APP ===
511
512 [[image:image-20220723102027-3.png]]
513
514 ==== Overview： ====
515
516 DRAGINO-LA66-APP is a mobile APP for LA66 USB LoRaWAN Module. DRAGINO-LA66-APP can obtain the positioning information of the mobile phone and send it to the LoRaWAN platform through the LA66 USB LoRaWAN Module.
517
518 View the communication signal strength between the node and the gateway through the RSSI value（DRAGINO-LA66-APP currently only supports Android system）
519
520 ==== Conditions of Use： ====
521
522 Requires a type-c to USB adapter
523
524 [[image:image-20220723104754-4.png]]
525
526 ==== Use of APP: ====
527
528 Function and page introduction
529
530 [[image:image-20220723113448-7.png||height="1481" width="670"]]
531
532 1.Display LA66 USB LoRaWAN Module connection status
533
534 2.Check and reconnect
535
536 3.Turn send timestamps on or off
537
538 4.Display LoRaWan connection status
539
540 5.Check LoRaWan connection status
541
542 6.The RSSI value of the node when the ACK is received
543
544 7.Node's Signal Strength Icon
545
546 8.Set the packet sending interval of the node in seconds
547
548 9.AT command input box
549
550 10.Send AT command button
551
552 11.Node log box
553
554 12.clear log button
555
556 13.exit button
557
558 LA66 USB LoRaWAN Module not connected
559
560 [[image:image-20220723110520-5.png||height="903" width="677"]]
561
562 Connect LA66 USB LoRaWAN Module
563
564 [[image:image-20220723110626-6.png||height="906" width="680"]]
565
566 === 3.8.2 Use DRAGINO-LA66-APP to obtain positioning information and send it to TTNV3 through LA66 USB LoRaWAN Module and integrate it into Node-RED ===
567
568 1.Register LA66 USB LoRaWAN Module to TTNV3
569
570 [[image:image-20220723134549-8.png]]
571
572 2.Open Node-RED,And import the JSON file to generate the flow
573
574 For the usage of Node-RED, please refer to:
575
576 == 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
577
578
579
580
581 = 4.  Order Info =
582
583
584 **Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
585
586
587 (% style="color:blue" %)**XXX**(%%): The default frequency band
588
589 * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
590 * (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
591 * (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
592 * (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
593 * (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
594 * (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
595 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
596 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
597 * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
598
599 = 5.  Reference =
600
601 * Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]

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